| 一种光学三维型面测量中的阴影去除方法 |
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| 引用本文： | 陈雪芳.一种光学三维型面测量中的阴影去除方法[J].机械设计与研究,2007,23(5):74-76,86. |
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| 作者姓名： | 陈雪芳 |
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| 作者单位： | 苏州职业大学,机电工程系,苏州,215104 |
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| 摘 要： | 三维测量获得的点云数据一般须进行去噪处理以保证重构曲面的精度,光学三维测量中这些噪点主要是由阴影形成的,因此阴影去除的效果直接影响到反求工程的效率和精度.采用基于Gray-code投影的方法实现三维面型测量,根据Gray-code唯一、有序的特点,在测量过程中进行阴影处理,可以有效地去除阴影,从而去除测量结果中的噪点.该方法可以避免噪声,保证点云数据的准确性,为后续的曲面重构提供便利,在反求工程中具有重要的实用价值.
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| 关 键 词： | 反求工程 三维测量 阴影 格雷码 光学 三维型面测量 去除方法 Measurement Optical Based Shadow Removing 价值 提供便利 曲面重构 噪声 测量结果 阴影处理 过程 有序 面型 投影 效率 反求工程 |
| 文章编号： | 1006-2343（2007）05-074-03 |
| 修稿时间： | 2007-04-24 |
Method of Removing Shadow Based on the Optical 3-D Measurement |
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| CHEN Xue-fang.Method of Removing Shadow Based on the Optical 3-D Measurement[J].Machine Design and Research,2007,23(5):74-76,86. |
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| Authors: | CHEN Xue-fang |
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| Affiliation: | Department of Mechanical--Electronic Engineering, Suzhou Vocational University, Jiangsu Suzhou 215014, China |
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| Abstract: | The point data by 3-D measurement need the process of wiping off the noise to ensure the precision of the CAD modeling. The noise points in 3-D optical measurement mainly consist of points of shadow region. Consequently, the impact of omitting shadow have effect on the efficiency of reverse engineering. 3-D measurement based on structured light which adopts Gray-code stripe pattern approach. According to the characteristic of Gray-code which is unique and order, we can erase the noise point of shadow region, The method can be immune to the noise and ensure the precision of the data of point cloud. |
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| Keywords: | reverse engineering 3-D measurement shadow gray-code |
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